Cloned task for *** Issue 26046 *** with target milestone: OOo 2.0                                                         
*** manually generated child task for Issue 24676 ***

MS form controls feature 13 possibilities to align a text and a image on the
same control:
top left, top centered, top right, left top, left centered, left bottom, bottom
left ... (etc.), and centered.
For interoperability with MS form documents, we need to provide our form
controls with this capability, too. While the toolkit implementations are to be
done elsewhere, this issue is about the VCL core support for this feature.

We need these alignment feature for PushButtons, and (once issue 26046 is
fixed), also for RadioButtons, CheckBoxes, and FixedText.